Merge pull request #838 from napi-rs/fix-async-fn

fix(napi-derive): missing move in async fn

crates/backend/src/codegen/fn.rs

@@ -33,7 +33,7 @@ impl TryToTokens for NapiFn {
         quote! { Ok(#receiver(#(#arg_names),*).await) }
       };
       quote! {
-        execute_tokio_future(env, async { #call }, |env, #receiver_ret_name| {
+        execute_tokio_future(env, async move { #call }, |env, #receiver_ret_name| {
           #ret
         })
       }

examples/napi/__test__/typegen.spec.ts.md

@@ -12,6 +12,7 @@ Generated by [AVA](https://avajs.dev).
     export function getNums(): Array<number>␊
     export function sumNums(nums: Array<number>): number␊
     export function readFileAsync(path: string): Promise<Buffer>␊
+    export function asyncMultiTwo(arg: number): Promise<number>␊
     export function getCwd(callback: (arg0: string) => void): void␊
     export function readFile(callback: (arg0: Error | undefined, arg1: string | null) => void): void␊
     export function eitherStringOrNumber(input: string | number): number␊

examples/napi/__test__/values.spec.ts

@@ -34,6 +34,7 @@ import {
   either4,
   withoutAbortController,
   withAbortController,
+  asyncMultiTwo,
 } from '../'
 
 test('number', (t) => {
@@ -163,6 +164,10 @@ test('async', async (t) => {
   await t.throwsAsync(() => readFileAsync('some_nonexist_path.file'))
 })
 
+test('async move', async (t) => {
+  t.is(await asyncMultiTwo(2), 4)
+})
+
 test('either', (t) => {
   t.is(eitherStringOrNumber(2), 2)
   t.is(eitherStringOrNumber('hello'), 'hello'.length)

examples/napi/index.d.ts

@@ -2,6 +2,7 @@ export function getWords(): Array<string>
 export function getNums(): Array<number>
 export function sumNums(nums: Array<number>): number
 export function readFileAsync(path: string): Promise<Buffer>
+export function asyncMultiTwo(arg: number): Promise<number>
 export function getCwd(callback: (arg0: string) => void): void
 export function readFile(callback: (arg0: Error | undefined, arg1: string | null) => void): void
 export function eitherStringOrNumber(input: string | number): number

examples/napi/src/async.rs

@@ -14,3 +14,10 @@ async fn read_file_async(path: String) -> Result<Buffer> {
     })
     .await
 }
+
+#[napi]
+async fn async_multi_two(arg: u32) -> Result<u32> {
+  tokio::task::spawn(async move { Ok(arg * 2) })
+    .await
+    .unwrap()
+}